Frederic  smith



(No Modem I F. SMITH.

WIRE DRAWING MACHINE. 190.398.982. Patented Mar. 5, 1889.

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arent* @lirica FREDERIC Sll'll'l', 0l?1 I'IALIFAX, COUNTY OF YORK, ENGLAND.

WlRE-DRAWl NG MACHINE.

SPECIFICATION forming part of Letters Patent No. 398,982, dated March 5, 1889.

Application filed July 18, 1888.

To all whoml t muy 1o/cern s Be it known thatl, FREDERIC Saura, a subi ject of the Queen of Great Britain, residing g at Halifax, in the county of York, England, have invented certain new and useful Ini-I provements in vire-Drawing Machines, of,

which the following is a specification.

My improvements relate to that class ofv wire-drawing machines in which a single wire 1 is reduced in dian'ieter by drawing it through a series of dies by means of a series of drawing-through pulleys driven at gradually-in- 1 creasing surface speeds from the swift to the winding-on drum or wire-drawefs block, and

the object of my improvements is to increase the production and simplify the cost and construction of such machines.

In cz'irrying my improvements into effect I construct a machine so arranged that several wires can be drawn simultaneously, instead of only a single wire, as at present.

In order that my invention may be fully understood and readily carried into effect, I Will describe the accompanying sheet of drawings, reference being had to the figures and letters marked thereon.

Figure l is a side elevation, and Fig. 2 a plan, of a machine embodying my improvements and constructed to draw four wires simultaneously through a series of six dies or holes.

In the drawings, a designates the draw bench or frame of the machine.

b b are two of the swifts on which the coils of wire to be drawn are placed. In the machine shown, as there are four wires to be drawn, each wire would be run off from a separate swift; but to avoid reducing` the drawings to a very small scale only two swifts b have been shown.

o c C2 c(s c* c5 are the dan ged drawing-throu gh pulleys, the shafts d d means of the bevel-wheels c e c3 e3 ci c, geared respectively to the bevel-wheels f .jf xed on the shaft g, which receives motion by means of a gear, h, from a gear, i, fixed on the main shaft j, which is driven by means of a belt (not shown) and a pair of fast and loose pulleys, k. k.

It will be seen on reference to Fig. 2 that the sizes of the two series of bevel-gears e to which are mounted, respectively, on d? d3 d* d, and are driven by Serial No. 280,310. (No model.)

l e5 and j' to f5 are so proportioned that the drawing-through pulleys are driven atgradu ally-increasing surface speeds, that of the pulley c being the slmvest and that of the pulley c5 the quickest.

i Each wire is taken from its swift through z a guide-eye, m, secured at. the feed end of the i draw-bench, thence through an eye or slot in the front side of the ii rst lubricatingtrough, n, thence across the trough and through one of Jthe iii-st series of four dies or draw-holes, o, which are carried on the back side of the i trough n, then between a guide or fork, p, one of which is secured to the side of the trough n behind each die 0, thence once or l twice around the first drawing-through pulley, c. The drawing-through pulley c, and each,

broad enough to accommodate all the four pulley it is obvious that four separa-te pulleys, one for each wire, might be secured upon each shaft d.. Fromthe iirstdrawing-through pulley c each wire, reduced in sectional area i and correspondingly elongated by the iirst die o, passes through one of the slots in the side of the second lubricatiiig-trough, n', thence through one of the second series of four dies or draw-holes, o', between one of the second series of guide-forks p', and around the second drawing-through pulley, c', the wires having been further reduced in size and elongated by the second series of dies, o. In like manner the Wires pass forward alternately through the series of dies o2 o3 o o1", bet-Ween the guide-forks 132293 p1 pi and around the remaining drawing-through pulleys c2 c3 c" c5, l the wires being further reduced in size and elongated by each succeeding series of dies, and this increase in length being compensated for by the correspondingly increased surface speed of each succeeding thawing-through pulley. The function of the several series of guide-forks vp to p5 is to prevent the end of any wire as a piece runs oft' becoming entangled with the others. The wires pass from the final series of dies, o, over guide-pulleys l q to the four winding-on drums or wiredrawers blocks r, each ofwhich is driven by means f of a pulley, s, and strap s from a pulley, s?, y fixed on the shaft g, the pulleys .s and being so proportioned that the surface speed of succeeding drawing-ihrengh pulley, is made Wires; but instead of having a single broad IOC) the winding-on drums yr exceeds that of the last drawing-through pulley to the extent required to compensate for the elongation of the wires caused by the final series of dies, 0.

To insure the thorough lubrication of the several wires during the drawing process, I arrange a tank or reservoir, t, which is full of lubricating-liquor, and in which the series oi drawing-through pulleys e c c2 cS c1 are partially immersed. The grooved iianges of these pulleys as they revolve carry up a certain quantity of the lubricant, which is eollected from them by a series of tubes orchannels, u, and conducted into the respective troughs n to n. The lirst trough, n, is similarly Supplied with lubricant by means of two revolving grooved pulleys, r, and a pair of tubes or channels, u', the said pulleys 'U bein g mounted on a shaft, t', which is driven bya pulley, r2, and a band, r3, from a pulley, 1:4, fixed on the shaft d.

The several series of dies o to o6 are placed about or below the level of the lubricant in the troughs yn, so that the dies are kept cool and the wires are thoroughly lubricated during their passage through the machine, and any surplus liquid escapes from the troughs n back to the reservoir t, either through the slots in the front sides of the troughs n or through the dies or draw-holes o.

As an alternative arrangement for raising the lubricant from the reservoir t into the troughs n, I might employ, instead of anges on the drawing-through pulleys, a series of chains carrying cups or buckets an d arrau ged to revolve over guides or pulleys, and to raise the lubricant from the reservoir t by means of the cups or buckets and discharge it into open channels leading to the troughs fn.

That I claim as my invention, and desire to secure, by Letters Patent of the United States, is-

l. In a machine for drawing two or more wires and reducing them simultaneously any required number of sizes, the combination of the swifts h, the series of revolving drawingthrough pulleys c, each pulley being broad enough to accommodate on its periphery all the wires to be drawn, all the pulleys being driven by bevel-gearing at gradually-increasing surface speeds from the swifts tothe wind- .ing-on drums b, which are driven at a still quicker speed by pulleys and belts, the several series of dies or draw-holes o, each series of holes being smaller than the preceding one, the lubrication of the Wires being effected by immersing the revolving drawing-throughy pulleys in lubricant contained in a reservoir, and also by immersing the series of dies o in lubricant supplied to a series of troughs, n, all substantially as herein set forth, for the purposes specified.

2. The combination, with the series of flanged drawing-through pulleys c, driven at varying surface speeds by bevel-gearing, as described, and immersing yin a reservoir containing lubricant, of the tubes or channels u, and the series of troughs n, substantially as and for the purposes herein described, and as shown.

3. The combination, with the series of lubricating-tro ughs n and the series of dies o, of the series of guides or forks p, and the drawingthrough pulleys c, substantially as herein set forth, for the purposes specified.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 6th day of July, 1888.

FREDERIC SMITH.

ltnessesf W. L. DEARDEN, A. C. HoDGsoN, Both of Caledonia lVorks, Hal/ifea', England. 

